Calcium (Ca) - Group - Shared characteristics: All are found in the same group on the periodic table and have similar chemical properties based on their electron configurations.
Flourine (F) - Group - Shared characteristics: All are nonmetals with similar reactivity and properties.
Iodine (I) - Group - Shared characteristics: All are in the halogen group and have similar chemical properties.
Argon (Ar) - Period - Shared characteristics: All are noble gases with full valence shells and similar properties.
Element
Matching
Element Matching Group
or Period? Shared
Characteristics
Calcium (Ca)
Flourine (F)
Iodine (I)
Argon (Ar)
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